Stunned Palestinians found their home city unrecognisable Monday as they filtered in to salvage what they could from the vast destruction left by Israeli troops who withdrew from southern Gaza's Khan Younis a day earlier after months of fighting and bombardment. The scenes in Khan Younis underscored what has been one of the world’s most destructive and lethal military assaults in recent decades, leaving most of the tiny coastal territory unlivable for its 2.3 million people. It also portended what is likely to happen in Gaza’s southernmost town of Rafah, where half of Gaza’s uprooted population is now crowded, if Israel goes ahead with plans to invade it.